Nibi Metrics
Real-time water levels, forecasts, and alerts for lakes and rivers across Canada and the US. Built on official government data.
Nibi Metrics turns raw gauge readings from official hydrometric networks into something a person standing on a dock can actually use: is the water high or low for today, which way is it moving, and how unusual is this? This page explains where every number on the platform comes from and what we do to it along the way.
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Santa Cruz River at Cortaro Water Level
Live river level, flow, historical records and forecast for Santa Cruz River at Cortaro in AZ, United States, built from official government gauge data.
- Location AZ, United States
- Watershed rillito
- Primary gauge 09486500 (USGS)
About Santa Cruz River at Cortaro
Santa Cruz River - a vital lifeline in the arid southwest.
The Santa Cruz River at Cortaro flows through a landscape defined by its seasonal extremes. This river is part of the Rillito watershed, which sees significant variations in water flow owing to the arid conditions typical of Arizona. The hydrology here is influenced by summer monsoon thunderstorms that can lead to violent flash flooding, while winter storms and snowmelt contribute to the river's higher flows during cooler months.
The watershed context
Draining approximately 3,503 square miles, the Santa Cruz River serves as an important watercourse in southern Arizona, supporting diverse ecosystems and providing critical resources. The river shares its surroundings with several notable peers, including Barrel Canyon, Brawley Wash, and Cienega Creek. These nearby waterways indicate the rich hydrological connections in the area, although many channels run dry between significant weather events, a characteristic feature of this region's unpredictable climate.
Why the data matters here
Today's water level reading from the Santa Cruz River at Cortaro is an essential data point, providing insight into the river's current state compared to its historical records. For over 50 years, the U.S. Geological Survey (USGS) has maintained measurements at this station, allowing for a comparison against the median for this calendar day. This context is crucial as it offers a clearer picture of fluctuations in the river’s flow and can be more informative than simply noting a raw elevation figure. Tracking these changes assists local communities in planning and preparedness while reflecting the dynamic nature of this vital watercourse in an arid environment.
How this page is built
Readings come from official government gauges and are rolled into daily records: the daily mean, high and low for every day on record. Each calendar day gets its own baseline from the full history, so the level you see is compared against what this specific date usually looks like rather than an annual average.
How Nibi Metrics works · Water stories
